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An easy mass pole system

  1. Nov 6, 2007 #1
    I want to know the x,y position at the time t of this system when I apply a force in the direction showed, how do I find it?

  2. jcsd
  3. Nov 6, 2007 #2


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    Staff: Mentor

    We respectfully request students (and others) to show some effort and work.

    This is a problem in which a torque is applied at a pivot to which a mass is attached by a moment arm, which in this case has length 11 (no units specified). The mass m is also not specified, and it's not clear whether or not the mass of the connecting arm (or rod) has a mass.

    The position as a function of time will depend on the moment of inertia of the moment arm and mass, m, and the applied torque.

    Here is a nice reference - http://hyperphysics.phy-astr.gsu.edu/hbase/mi.html

  4. Nov 16, 2007 #3
    sorry for the delay Astronuc >_<.

    What I want, is to know the transient response to an impulse input to that system. The length of the rod is L1 and massless
  5. Nov 16, 2007 #4
    Here is something I made, can someone correct my homework?

    Maybe Mabauti can calculate the solution for me, so I can see how the thing rotates in function of time.

    Attached Files:

    Last edited: Nov 16, 2007
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